Subjects in one of four calcium subgroups noted a 54 per cent reduction in aches and pains, while the placebo group had a 15 per cent increase.

• 四个钙服用分组之一的受试者中有54%25的人觉得疼痛减弱，而安慰剂服用组则有15%25的人觉得疼痛加剧。